Device for lifting vehicles, particularly motor-cars.



F. ILSEMANN. DEVICE FOR LIFTING VEHICLES, PARTICULARLY MOTOR CARS.

Patented Aug. 17,

APPLICATION FILED IAN-2. I914.

i .I EICH ILSEMANN, OF HORN, NEAR BREMEI Q, GEANY, ASSIGNOR TO THE FIRM OF METALL-INDUSTRIE UND EANDELS-GESELLSCHAFT MIT BESCHKTEB TUNG, OF BREMEN, GERMANY.

Specification of Letters Patent.

Patented ta it, rats.

Application filed January 2, 1914. Serial No. 810,070.

To all whom it may concern Be it known that I, FRIEDRICH ILSEMANN, asubject of the King of Prussia, German Emperor, residing at Horn, near Bremen, in the Kingdom of Prussia, German Empire, have invented certain new, and useful Improvements in Devices for Lifting Vehicles, Particularly Motor-Cars, of which the following is a specification.

This invention relates'to a device for lifting and supporting vehicles, particularly motor cars which is constructed in such a manner that the bearing surface which acts at the beginning of the lifting of the vehicle has a shorter radial distance from the point around which the lever pivots than the bearing surfaces on which the vehicle rests when it has been completely lifted. v

In the accompanying drawings the invention is shown by way of example Figure 1 is a side elevation of a motor car with the lifting levers. Fig. 2 shows on a larger scale an axle and part of a wheel with the lifting device. Fig. 8 is a part plan view of Fig. 2. Fig. 4 shows in side elevation another construction of the lifting lever.

According to the invention levers c are pivotally arranged near the wheel axles b.

.The levers c are adapted to be lowered and lifted. In order to obtain the lifting of the vehicle when said levers c are pressed upon the ground, said levers are angular and they are, longer than. the distance between the pivot pins d of said levers and the ground. In the lower ends of the levers c rollers e are mounted. The levers are arranged in such a manner that theyare lowered in a direction opposite to the direction in which the vehicle runs so that when the vehicle moves back it is automatically lifted by means of the lifting levers which have been previously lowered. The bearing surface m of the lifting lever which acts at the beginning of the lifting of the vehicle is arranged so that its radial distance from the axis of the pivot pin is shorter than the distance at which the bearing surface 6 is situated on which the vehicle rests when it is completely lifted. The lifting levers can be fork-shaped as shown in Fig. 3 and they are influenced by a spring f wound around the pivot pin d.

The lever 0 has at its upper end a forwardly projecting arm 9' to which a 'pull rope k is attached which can be pulled by the driver in order to lower the lever 0 against the action of the spring f. The lever c has further a forwardly-projecting spur 1 designed to pull the lever gradually into the .posed of two levers c and a which are independent the one from the other and coupled together so that they have sufiicient play. With this object in view the lever 2' has an arm 70 which carries a catch projecting on the path of the lever 0 so that if said lever c is lowered the lever z is drawn along and adopts a position which forms an angular posltion with regard to the lever 0 (Fig. 4). If the vehicle is lifted the lever i bears on the ground and eases the lever c.

I claim 1. An improved lifting jack for motor cars comprising in combination a lever pivotallymounted on the car frame under the wheel axle, said lever having two bearing points one of which is arranged at a shorter radial distance from the pivot of said lever than the other which serves for supporting the lifted car, -a spring influenced spur hinged on said lever at said bearing point which has a shorter radial distance from the pivot than the supporting .point, for the purpose of gradually lifting the car when the lifting jack, is lowered, so that said car is first slightly (lifted by said spur before it comes to rest on the bearing point proper, substantially as described and shown and for the purpose set forth.

2. An improved lifting jack for motor cars comprising in combination a lifting lever, a pivot pin for pivotally mounting said lifting lever under the frame of the car below the wheel axle, said lifting lever having two bearing points one of which is situated at a shorter distance from said pivot pin than the other, a spring influenced spur hinged to said lifting lever at the bearing point situated at a shorter distance from said pivot than the other bearing point, and a second leve'r loosely mounted on said pivot pin designed to release the pivot of the lifting lever when the same is in supporting position substantially as described and shown and for the purpose set forth.

In witness whereof I have hereunto set niy hand in the presence of two witnesses.

FRIEDRICH ILSEMANN Witnesses:

Wmnnnm STRUI, HANS Mmssnnn. 

